Ball-bearing.



I'. VII. WITTE.

BALL BEARING. APPLICATION F|LED'ocT.1.191z.

Patented Nov. 23, 1915.

. dial extension of theAb'all-bearings. l

Vbeen tried to reduce this -radial extenslon l nrrnn rATn r oFFIcE.

FRIEDRICH WILHELM WTTE, OIF` LEIPZIG-PLAGWITZ, GERMANY, ASSIGNOR TO DEUTSCHE KUGELLAGERFABRIK GESELLSCHAFT MIT BESCHRANKTECR I-IFTUNG,

BALL-BEARING'.

To all whom t mag/,concern Beit knoWn'that/l, FRIEDRICH WILHELM WITTE, a citizen of the United States, and a resident of Leipzig-Plagwitz, Germany, have invented certain' new and useful 1mprovements in Ball-Bearings, of which the following is the specification.

It is the general endeavor t0 arrange the self-adjusting ball-bearings for line-shafts in such a manner, that they can be exchanged if possible everywherefor the existing friction bearings, without any alterations to the other parts being necessary. This possibility has hitherto been prevented by one reason, namely the comparatively large 'at as of the ball-bearings and the outer casing 'of the ball-bearing has therefore been omitted and thev outer race ring has been provided with the bearing surfaces which|` will allow of the self-adjustment in the plumber-blocks; as it is however unavoidable, that the screws serving to hold the bearing in the plumberblock are tightened too much the known ball bearings showed the drawback, that the outer race ring would soon be deformed under the pressure of these screws. And for avoiding such deformation 'the outer race had to be made much thicker, whereby again the radial dimension of the ball-bearing was increased. f

The object. of the present invention is t0 remove this diiiiculty. IThe ball bearing is thereby rendered proof against any excessive tightening of thev screws and at the same time its radial extension is reduced to a minimum, so that it can be fitted into any existing plumber-block orv hanger.

The present invention consists in the outer race ring being relieved of the pressure exerted by the setscrews by this pressure being taken up by they caps closing the sides of the ball-bearing. These caps have a great moment of resistance in an axial direction, so that they are well able to take up a considerable stress Without being deformed. The manner, infwhich the outer race ring is 'relieved by the caps may differ. This may bev edected in an extremely simple manner by the caps or flanges provided onsaid caps bearing frominside against the outer race ring and thereby protecting the same against all deformation. llt will, however, be pref- Specication of Letters Patent.

.4 illustrates how the invention is employed .Patented Nov. 23, `1915.

Application led October 1, 1912: Serial 110,723,290.

erable if the outer race ring is rendered en- .tirely independent of the bearing surfaces allowing of the selfadjustment ofthe bearing and these bearing surfaces are in-connection with t-he said caps closing the sides. In

such case the outer ball race need not be machined at all on its outside surface and y may be made of the standard' dimensions.

1n the accompanying drawing a constructional form ofthe invention-is exemplified, showing a hanger bearing.

Flgure 1 is ar sectional view along the line A-A in Fig. 2. Fig. 2 is a side view and Fig. 3 is a plan of the bearing. Fig.

with collar bearings.

The bearing consists in known manner of the inner ball race ring a, and the outer race ring b and the set of balls c betweenthese races.` At both sides the bearingl is closed by the caps ci which bear against the outer race ring The caps d have rbesides an annular flange e on 'their' insides, which fits with its outer diameter exactly into the outer ball race and thereby protects the same `against all deformation. The caps are pressed by means of screws o against the race-ring. Both caps have each two diametrically opposite lugs f. Each of these lugs f has a notch g. These notches g serve to receive the bearingmembersv h which are displaceable in said notches in a ldirectionparallel to the axis of the shaft. The notches g are cut only so deep into the zlugs f, that the bearing members hy will not come into Contact withvthe outer ball race and a clear space is. left between. The bearing members h1 have on their outside spherical sur faces which it in known 'manner in correspondingly shaped sockets in the ends of the set-screws Z. These set-'screws Z can be screwed up and down in the bodym ofthe bearing and serve to raise or lower the axis o f the shaft according to requirement. Thek I claim: l y n 1. In a device of the class described, a. bearing, a support, means for adjusting said bearing relativelyto saidsupport, said bearing comprising an outer ball race ring, and

vymeans engaging the inner surface of said ring whereby the pressure of said adjusting means is resisted and deformation of' said ring is prevented. l

2. In an adjustable ball-bearing forline shafts, a support, an outer ball-race ring,

"caps locatedv at opposite sides of said ring and lforming therewith a casing,` adjusting screws for adjusting the position of said bearing relatively to said support, and annular ianges on said caps adapted toy it -,into said ring and form a rigidv support therefor whereby the 'latter is protected against deformation through the pressure exerted by said adjusting screws.

bearing in said support in the direction ofthe axes of said screws and bearing blocks in engagement with said screws and arranged to permit adjustment of said bearing 1n directions at an 4angle to the axes of said screws, said bearing blocks being in engagement with said caps but free from said outer ball-raee ring whereby the latter is relieved from the pressureexerted by said adjusting screws.

4. In an adjustable ball-bearing'for lineshafts, a support, an outer ball-race ring, caps located at opposite sides of said ring and forming ltherewith a casing, lugs on said caps located in alinem'ent in the axial direction nof the shaft, bearing bloeks'carried by said lugs and movable relatively thereto in the direction ofthe axis of the shaft, spherical surfaces on said bearing blocks,

and adjusting screws in said support arr ranged to engage said spherical surfaces to permit a swivel movement of the bearing,

4said bearing-blocks being free from said outer ball-race ring whereby the latter is relieved from the pressure exerted by said adjusting screws.

In witness whereof I have hereunto signed my name this 12th day of September, 1912.

` FRIEDRICH IVILHELM WITTE.

IVitnesses:

' RUDOLPH FRICKE5 WALTER ANDERs. 

